I thought I was pregnant.. Does this mean I'm not? Advice appreciated.

I was on the pill for exactly two months. I stopped and received my period 4-5 days later! After my period I had sex every second day for two weeks. I have been having cramps since last week,feeling nauseated through out the day and my two breasts are sore! My left is more tender but it feels as it's fading and my right is just a little tender. I'm CD33 and I'm not sure if I'm late or what because on BC my periods was 25-26 days and without it 35 days but I've been cramping since last week.. Don't want to test et to get my hopes up but what do you think?:(